diff --git a/make/textest.mk b/make/textest.mk
index 30cfc6ba..b2181c8e 100644
--- a/make/textest.mk
+++ b/make/textest.mk
@@ -31,5 +31,5 @@ $(OUT_PNG): $(OUT_PDF)
 	convert -density 400 -scale x$(PNG_WIDTH) $< $@
 
 clean.files:
-	rm -rf *.done *.aux *.log *.pdf *.nav *.out *.snm *.toc .*.swp $(OUT_PNG)
+	rm -rf *.done *.aux *.log *.pdf *.nav *.out *.snm *.toc .*.swp $(OUT_PNG) *.vrb